/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.reactive.function;

import org.springframework.http.server.reactive.ServerHttpRequest;

/**
 * A function that can extract data from a {@link Request} body.
 *
 * @param <T> the type of data to extract
 * @author Arjen Poutsma
 * @since 5.0
 * @see Request#body(BodyExtractor)
 * @see BodyExtractors
 */
@FunctionalInterface
public interface BodyExtractor<T> {

	/**
	 * Extract from the given request.
	 * @param request the request to extract from
	 * @param strategies the strategies to use
	 * @return the extracted data
	 */
	T extract(ServerHttpRequest request, StrategiesSupplier strategies);

}
